ci: Use GitHub Actions V4 (barryvdh#1469)

Author: erikn69

.github/workflows/composer-normalize.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Validate Composer configuration
         run: composer validate --strict

.github/workflows/fix-code-style.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2

.github/workflows/run-integration-tests.yml

@@ -36,7 +36,7 @@ jobs:
         name: P${{ matrix.php }} - Laravel${{ matrix.laravel }}
         steps:
             - name: Checkout code
-              uses: actions/checkout@v2
+              uses: actions/checkout@v4
               with:
                   path: src
 

.github/workflows/run-static-analysis.yml

@@ -12,7 +12,7 @@ jobs:
         runs-on: ubuntu-20.04
 
         steps:
-            - uses: actions/checkout@v2
+            - uses: actions/checkout@v4
 
             - name: Setup PHP
               uses: shivammathur/setup-php@v2

.github/workflows/run-tests.yml

@@ -48,7 +48,7 @@ jobs:
         git config --global core.eol lf
 
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2